Description: L 22.1–22.7um, Br 15.5–15.7um, Isth 4.2–4.3um, L:Br 1.4. Cells differ from the typical in not having the blunt spine-like thickening on the apical angles, were shorter and relatively broader and the basal margins were slightly divergent. This taxon fits the description in Ruzicka (1981) but of the five figures shown (9–13) only figures 11 & 13 are representative of the organisms in this sample. (Dingley 2001)

State distribution in Australia, based on available literature

new varietal record for australia (Dingley 2001)

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